These demonic deep-sea creatures hunt in packs of thousands and are equipped with the perfect weapon to severe their prey’s ...

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Learn about the amazing wound healing process of a tiny jellyfish, in which cells "walk" toward each other to close wounds.

Nature's most striking animals share a surprisingly common fashion statement, and their polka dots do far more than just look ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...